[sdiy] An Improved Sine Shaper Circuit

Ben Bradley ben.pi.bradley at gmail.com
Fri Apr 17 06:46:25 CEST 2020

That's a fascinating idea and good work, an improvement over a common
sine shaper I first saw decades ago,
First I have an observation of a 'slight' error. The + and - inputs of
the first two TL074 sections appear to be swapped.

Next, may I post this elsewhere, specifically on diyaudio.com? They
have a perennial interest in low-distortion sine wave generation,
generally lower distortion than this gives, but some there may find
this useful.

On Thu, Apr 16, 2020 at 7:20 PM Donald Tillman <don at till.com> wrote:
> Hey folks,
> I came up with a new sine shaper circuit.  It's a weird variation on old sine shaper circuit.  And it has an order of magnitude more accuracy.
> I've written it up here:
>     An Improved Sine Shaper Circuit
>     http://till.com/articles/sineshaper/
> Check it out and tell me what you think...
>   -- Don
> --
> Donald Tillman, Palo Alto, California
> http://www.till.com
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